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glamor: Don't forget to set GL_INVALIDATE_RANGE_BIT on GL_ARB_mbr.

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We don't need any current contents of the buffer, and this allows an
implementation to make a temporary BO for a streamed upload if it
wants to.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus at selfnet.de>
This commit is contained in:
Eric Anholt 2013-12-24 12:14:04 -08:00
parent 25be6b3842
commit bce5ec4f41
1 changed files with 2 additions and 1 deletions
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3
glamor/glamor_render.c
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@ -731,7 +731,8 @@ glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
glamor_priv->vbo_offset,
vert_size,
GL_MAP_WRITE_BIT |
GL_MAP_UNSYNCHRONIZED_BIT);
GL_MAP_UNSYNCHRONIZED_BIT |
GL_MAP_INVALIDATE_RANGE_BIT);
assert(glamor_priv->vb != NULL);
glamor_priv->vb -= glamor_priv->vbo_offset;
}